Wasp-mimicking katydid (Aganacris velutina)

(ENG) Aganacris velutina is a katydid (Fam: Tettigoniidae; subFam: Phaneropterinae) and it mimics a pompilid wasp. Note the wings that are similar to hawk wasp (Pepsis sp.). Daniel LLavaneras explains that aposematic wasp mimics are common in the insect world; you can see many examples in flies (Syrphidae), moths (Sesiidae) and beetles (Cerambycidae), but wasp mimicry in tettigonids is pretty rare. It doesn't just mimic the body shape, but also imitates the behavior. When I was taking this picture the katydid started to simulate that it was going to sting my hand with its non-venomous abdomen.